Apex Root Domain mode parses out the registrable second-level and top-level domain names (e.g., 'telekit.link', 'github.com', or multi-part ccTLDs like 'domain.co.uk' and 'portal.gov.in'), stripping subdomains and URL paths. Subdomains mode preserves full multi-level hostnames (e.g., 'api.github.com' or 'auth.staging.telekit.link').

The built-in parser maintains an extensive dictionary of multi-part public suffixes (including .co.uk, .gov.uk, .com.au, .edu.au, .co.jp, .co.in, .com.br, .com.sg, and more) to ensure apex root extraction resolves correctly to 3 domain segments without incorrectly truncating the second-level registry.

Yes. Simply toggle the 'Remove www. Prefix' option, or use the 1-click text hygiene helpers (Strip Protocols, Strip Paths & Queries, Lowercase All, Trim Blank Lines) to clean and sanitize your input text before or after extraction.

Yes! You can paste any raw HTML document, web server log (Nginx, Apache, IIS, Cloudflare), email header/body, or CSV dump directly into the workspace, or drag and drop a .txt, .html, .log, or .csv file.

When viewing results in the Grid Inspector tab, an instant search bar lets you filter extracted domains by keyword, TLD extension, or depth. You can also view count frequencies, apex vs subdomain tags, and perform 1-click single copies or DNS lookups.

Yes. Toggle 'Exclude Raw IPs' to filter out IPv4 addresses and loopback addresses like 127.0.0.1 or localhost. You can also enforce 'Subdomains Only' (extracting only hostnames with 3+ segments) or enter a comma-separated keyword exclusion list (e.g., 'localhost, staging, cdn').

You can copy or download your extracted domains in Plain List format (with customizable delimiters like Newline, Comma, Semicolon, Space, Tab, or SQL VALUES), JSON array, CSV spreadsheet, or Markdown table. You can also use the 1-Click Quick Copy Action Strip for immediate access to Apex Only, Subdomains Only, CSV Table, JSON Array, Markdown Table, or SQL VALUES, and export a structured JSON audit report (.json) with execution metrics and TLD distributions.

The tool generates ready-to-run domain extraction scripts across 7 languages: Python 3, TypeScript, JavaScript / Node.js, Go, Rust, PHP, and Bash CLI one-liners, complete with regex patterns and URL parsing routines. You can copy the code or 1-click download standalone runnable script files (.py, .ts, .js, .go, .rs, .php, .sh).

Navigate rapidly with standard developer hotkeys: press '/' to focus the input editor, 'Alt+P' for DevToys Smart Clipboard Auto-Detect (auto-scans and extracts domains from your clipboard), 'Alt+V' to cycle workspace layout density (Split Studio, Stacked, Editor, Output), 'Alt+S' to open the Developer API Studio, 'Alt+M' to copy the Markdown summary table, 'Alt+D' to toggle Star Tool bookmarking, 'Alt+R' to load a random demo preset, 'Ctrl+Enter' or 'Alt+C' to copy extracted results, 'Alt+K' (or '?') to view the full shortcuts guide, and 'Esc' to dismiss modals or reset the workspace.

No. All regular expression matching, URL parsing, hostname sanitization, and analytics execute 100% locally inside your web browser memory via JavaScript. Zero network requests, zero telemetry, and zero data logging.